用89c51单片机与USBD12结合的电路图和源程序..

通过ＭＣＵ采集数据并上传到ＰＣ，通过串口协议传送-Through the MCU data collection and upload to the PC, through serial transmission agreement

* 功能：运行RTC进行计时，将所时间值不断的通过串口向上位机发送，并把秒的值输出数码管D1 * 上显示。上位机运行EasyARM软件，在串口发送/接收窗口观察。 * 说明：* 通讯波特率115200，8位数据位，1位停止位，无奇偶校验。-* Function: RTC to run for a time, the time value will be constant upward through the serial-bit machine to send, and seconds values D1* output digital tube display. PC running EasyARM software serial port to send/receive window of observation.* Description:* 115200,8 bit baud rate of communication data bits, 1 stop bit, no parity.

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AVR 单片机入门必读文档，内容精要，图文解说。-AVR single-chip entry-must-read document, the contents of the essence, graphic explanations.

51上的贪吃蛇程序，十分好，大家学习学习吧-51 on the Snake procedure is very good, everyone will learn it

是关于sd卡的接口电路图以及pcb封装原理图 是sd卡驱动者重要的资料-Is on the sd card interface circuit and the pcb schematic package sd card driver is important information

一个基于stc89s52 nRF2401的demo代码，-Stc89s52 nRF2401 based on the demo code,

使用Spartan3e解串行数据，来源于官方-Spartan3e solution using the serial data, from the official

有关于DS18B20的温度读取，控制电炉的温度，并且带有上下限警报-Read on DS18B20 the temperature and control the temperature of furnace, and with the upper and lower limits alarm

AVR仿真器制做全过程,我已经成功做出两个,现在还在使用.里面有原理图,代码-AVR simulator system to do the whole process, I have successfully made two, and now are still using. There are schematics, code